Question

I’m still very new to iOS developing. In fact, if there is a super noob, I would be one :p. Currently I am working on creating an IBAction button that accesses a subview. I have 2 ViewControllers, AddClientVC and NewClientVC, both with .nib files. So basically, inside my AddClientVC I implement an IBAction button with the following code:

- (IBAction)buttonPressed:(id)sender
{
    UIView *transparentBG = [[UIView alloc] initWithFrame:CGRectMake(-5, -5, 1500, 2500)];
    transparentBG.backgroundColor = [UIColor blackColor];
    transparentBG.opaque = NO;
    transparentBG.alpha = 0.5;
    [self.view addSubview:transparentBG];
    transparentBG.center = transparentBG.center;

    vc = [[NewClientVC alloc] initWithNibName:@"NewClientVC" bundle:nil];
    [self.view addSubview:vc.view];
    vc.view.center = self.view.center;
}

As you can see I implemented a UIView as a transparent background. Basically AddClientVC –> Transparent Background –> NewClientVC. Now I have created another IBAction button but this time inside NewClientVC as a function to dismiss the accessed subview which looks like this:

- (IBAction)saveDismiss:(id)sender
{
    [self.view removeFromSuperview];
}

The problem I’m having right now is when I click the saveDismiss button it only removes the subview that I called previously on AddClientVC but it didn’t remove the transparent background I have created as a UIView. So the problem is how do I implement an action which simultaneously removes my subview and the UIView transparent background I created.

I need all the help I can get 🙂

Answer 1

I recommend not to manage your screens by adding subviews manually but instead use

- (void)presentModalViewController: (UIViewController *)modalViewController
                          animated: (BOOL)animated

method on your root viewController.
Or better instantiate a UINavigationController and use push and pop methods to drill down/up your views.
See apple reference here